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A Prospective Clinical Trial of Carbon-ion Radiotherapy for Patients with Prostate Cancer of Clinical Stage T1c-T3N0M0

A Prospective Clinical Trial of Carbon-ion Radiotherapy for Patients with Prostate Cancer of Clinical Stage T1c-T3N0M0 - Carbon-ion Radiotherapy for T1c-T3N0M0 Prostate Cancer (iROCK-1701PR)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000027640
Enrollment
689
Registered
2017-06-06
Start date
2017-06-13
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patients with Prostate Cancer of Clinical Stage T1c-T3N0M0

Interventions

Carbon-ion radiation therapy A total of 51.6Gy(RBE) consisting of 12 fractions
once a day 4.3 Gy(RBE), 6-8 times for 2 weeks

Sponsors

Kanagawa Cancer Center, Kanagawa Prefectural Hospital Organization
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Histologically diagnosed primary prostate adenocarcinoma 2) Either clinical stage of T1c, T2a, T2b, T2c, T3a, or T3b and N0M0, in accordance with UICC 7th (2009) 3) ECOG Performance status is 0, 1 or 2 4) Twenty years old of age at registration or more 5) Untreated patient for prostate cancer, except for those who undergo neoadjuvant endocrine therapy 6) Patients are informed for diagnosis of prostate cancer and independently agree with this study on carbon-ion radiotherapy

Exclusion criteria

Exclusion criteria: 1) Patient with past history of radiotherapy for the targeted lesion 2) Patient with castration-resistant prostate cancer 3) Patient with active double cancer 4) Patient with active and intractable infection in the targeted lesion. 5) Patient with metal devices in the lesion which will cause adverse risk by carbon-ion radiotherapy 6) Patient eligible for Advanced Medicine Program B (Sen-shin Iryo B) 7) Other medical or psychological condition which is unsuitable for carbon-ion therapy

Design outcomes

Primary

MeasureTime frame
Biochemical progression-free survival at 5 years

Secondary

MeasureTime frame
1) Overall survival 2) Disease-specific survival 3) Event-free survival 4) Early and late-phase adverse event rate

Countries

Japan

Contacts

Public ContactHiroyuki Katoh

Kanagawa Cancer Center, Kanagawa Prefectural Hospital Organization Center for Carbon-ion Radiotherapy

hkatoh@kcch.jp045-520-2222

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026